When microbial conversations get physical |
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Authors: | Reguera Gemma |
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Affiliation: | Department of Microbiology and Molecular Genetics, Michigan State University, 6190 Biomedical & Physical Science Building, East Lansing, MI 48824, USA |
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Abstract: | It is widely accepted that microorganisms are social beings. Whereas communication via chemical signals (e.g. quorum sensing) has been the focus of most investigations, the use of physical signals for microbial cell-cell communication has received only limited attention. In this Opinion article, I postulate that physical modes of microbial communication could be widespread in nature. This is based on experimental evidence on the microbial emission and response to three physical signals: sound waves, electromagnetic radiation and electric currents. These signals propagate rapidly, and even at very low intensities, they provide useful mechanisms when a rapid response is required. I also make some suggestions for promising future research avenues that could provide novel and unsuspected insights into the physical nature of microbial signaling networks. |
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